infertility

I started my period at 12. It was never regular and I went to a million gynos and they all said it would straighten out as I got older. I'll be 22 in July and I may have a period every 3 months. In June of 2015 I was sent to a specialist for pain I've endured since I was about 14. My periods were unbearable, I'd miss a week of school stuck in bed in pain. And that weekend it's still be around. My periods would last 10-12 days. Anyway the doctor told me there was no sign of pcos or anything else but I probably wouldn't conceive without help because I don't ovulate. As a matter of fact he didn't really say probably he was pretty certain. My periods now are still rare, I'm not on any birth control everything I've tried  has made me so sick I couldn't function. 

This post got really long and my only question is does anyone else have the same problem? Or a similar problem?